CN214775205U

CN214775205U - Engineering machinery drive axle assembly

Info

Publication number: CN214775205U
Application number: CN202121445072.9U
Authority: CN
Inventors: 黄兴明; 王宾; 王德永; 吕远; 黄勇超; 王晓雪; 刘虹
Original assignee: LOVOL Engineering Machinery Group Co Ltd
Current assignee: Lovol Heavy Industry Group Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-11-19
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses an engineering machine tool drive axle assembly, including the axle housing, the front side of axle housing middle part is connected with the final drive shell, the rear side of axle housing middle part is connected with the fixed axle, the rear of axle housing is equipped with the back swing frame, be equipped with first adapter sleeve on the back swing frame, first adapter sleeve suit is on the fixed axle, the rear end of first adapter sleeve is connected with the back lid, the rear end of fixed axle is equipped with the outer loop and follows, be equipped with the annular spread groove that is used for holding the outer loop and follows between first adapter sleeve and the back lid, the place ahead of axle housing is equipped with preceding swing frame, be equipped with the second adapter sleeve on the preceding swing frame, the front end of final drive shell is equipped with the rotation connecting portion, second adapter sleeve suit is on rotating the connecting portion. The engineering machinery drive axle has a simpler structure and is more convenient to install and maintain; the swing amplitude of the drive axle is large in the using process, the abrasion-resistant effect of the parts is good, and the service life of the whole body is long.

Description

Engineering machinery drive axle assembly

Technical Field

The utility model relates to an engineering machine tool field, concretely relates to engineering machine tool drive axle assembly.

Background

A drive axle is generally provided in a construction machine (e.g., a loader). A transaxle is a mechanism located at the end of a drive train that can vary the speed and torque from a transmission and transmit them to drive wheels.

The drive axle comprises main reducer, differential mechanism, wheel transmission device and drive axle housing etc. and its basic function is: 1) the engine torque is transmitted to a driving wheel through a main speed reducer, a differential mechanism, a half shaft and the like, so that the speed reduction is realized and the torque is increased; 2) the transmission direction of the torque is changed through a bevel gear pair of the main speed reducer; 3) the differential action of the wheels at two sides is realized through a differential mechanism, and the wheels at the inner side and the outer side are ensured to turn at different rotating speeds; 4) the functions of bearing and transmitting torque are realized through the axle shell and the wheels.

At present, a drive axle is mainly rigidly mounted, namely the drive axle is fixedly mounted on a frame through a connecting frame, and the rigidly mounted drive axle cannot swing. In order to increase the stability of the vehicle in the running process and prevent the vehicle from turning over laterally during turning, the connecting frame is additionally arranged to be matched with the vehicle frame, so that the drive axle can swing relative to the vehicle frame. The disadvantages of this structure are: the swing angle of the drive axle is small, the structure is complex, the manufacturing cost is high, and the installation and the maintenance are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an engineering machine tool drive axle assembly with great swing angle and simple structure to above problem.

In order to achieve the purpose, the utility model discloses an engineering machine tool drive axle assembly, this engineering machine tool drive axle assembly include the axle housing, and the front side at axle housing middle part is connected with the final drive ware shell, the rear side at axle housing middle part is connected with the fixed axle, and the rear of axle housing is equipped with the back swing frame, is equipped with first adapter sleeve on the back swing frame, and first adapter sleeve suit is on the fixed axle, and the rear end of first adapter sleeve is connected with the back lid, and the rear end of fixed axle is equipped with the outer loop edge, is equipped with the annular spread groove that is used for holding the outer loop edge between first adapter sleeve and the back lid, and the place ahead of axle housing is equipped with preceding swing frame, is equipped with the second adapter sleeve on the preceding swing frame, and the front end of final drive ware shell is equipped with rotates connecting portion, and second adapter sleeve suit is on rotating connecting portion. When the swing mechanism is used, the rear swing frame and the front swing frame are fixed on the frame, the rear side of the axle housing is rotatably connected with the rear swing frame, and the front side of the axle housing is rotatably connected with the front swing frame through the main speed reducer shell, so that the drive axle can swing relative to the frame. The rear side of the axle housing is connected with the rear swing frame into a whole by matching the outer ring edge with the annular connecting groove, so that the axle housing is limited to move along the front and rear directions of the frame; the second connecting sleeve is sleeved on the rotating connecting portion, has a certain axial moving range, and facilitates installation of the front swing frame.

The utility model discloses a in the further improvement, be equipped with first mounting groove in the first connecting sleeve, install first bush in the first mounting groove. The first lining has a buffering function, and the first connecting sleeve and the fixed shaft can be prevented from being damaged too fast due to mutual friction.

In a further improvement of the present invention, the outer ring has a hard gasket on each of upper and lower sides thereof. The hard gaskets are arranged on the upper side and the lower side of the outer ring edge, and abrasion is reduced.

The utility model discloses a in the further improvement, rotate connecting portion and install wear-resisting sleeve, the second adapter sleeve suit is on wear-resisting sleeve. The wear-resisting sleeve is used for protecting the rotary connecting part and preventing the main speed reducer shell from being damaged.

The utility model discloses an in the further improvement, be equipped with the second mounting groove in the second adapter sleeve, the preceding terminal surface of second adapter sleeve is link up to the front side of second mounting groove, installs the second bush in the second mounting groove, and the spacing retaining ring that is used for restricting the second bush is installed to the front end of second adapter sleeve. The second lining has a buffering function, and can prevent the second connecting sleeve from rubbing with the main speed reducer shell to cause too fast damage.

The utility model discloses a in the further improvement, the fixed axle is tubular structure, is equipped with the spacing groove on the preceding terminal surface of fixed axle, is equipped with spacing boss on the axle housing, and spacing boss inserts the spacing inslot. The limiting boss is matched with the limiting groove, so that the mounting position of the fixing shaft is accurate.

Preferably, the fixed shaft is of a cylindrical structure, a sunk groove is formed in the rear end face of the fixed shaft, a plurality of connecting holes are annularly distributed in the bottom of the sunk groove, and connecting bolts connected with the axle housing penetrate through the connecting holes. Connecting bolt is used for being connected between fixed axle and the axle housing, and heavy groove is used for holding connecting bolt's head, makes overall structure compacter.

Preferably, the annular connecting groove comprises a first annular groove formed in the first connecting sleeve and a second annular groove formed in the rear cover, a plurality of first lubricating oil grooves extending in the radial direction are annularly distributed at the bottom of the second annular groove, a second lubricating oil groove is formed in the first bushing, and an oil inlet hole and an oil filling oil cup are formed in the rear swing frame. First annular and second annular form the annular spread groove altogether, establish the first lubrication groove on the back lid and establish the second lubrication groove on first bush and have the effect of storing lubricating oil, are favorable to lubricating, can pour into lubricating oil into to the inlet port through oiling oil cup, and lubricating oil can get into the lubrication groove and provide lubricated usefulness.

The utility model discloses a in the further improvement, be equipped with the second lubrication groove on the second bush, be equipped with the inlet port and install the oiling oil cup on the preceding swing frame. Lubricating oil can be injected into the oil inlet hole through the oil injection cup, and the lubricating oil can enter the second lubricating oil groove, so that lubrication is facilitated.

The utility model discloses an in the further improvement, stopper assembly, hub reduction gear assembly are all installed at the both ends of axle housing, and hub reduction gear assembly is used for slowing down and increases the moment of torsion, and the stopper assembly is used for the wheel braking.

To sum up, the beneficial effects of the utility model reside in that: the engineering machinery drive axle has a simpler structure and is more convenient to install and maintain; the swing amplitude of the drive axle is large in the using process, the abrasion-resistant effect of the parts is good, and the service life of the whole body is long.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

FIG. 5 is a schematic structural view of the middle and rear covers of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 3 taken along line A-A;

fig. 7 is a schematic structural view of the first and second bushings of the present invention.

In the figure: 1. an axle housing; 2. a main reducer case; 3. a fixed shaft; 4. a rear swing frame; 5. a first connecting sleeve; 6. a rear cover; 7. an outer annular rim; 8. an annular connecting groove; 9. a front swing frame; 10. a second connecting sleeve; 11. a rotation connecting part; 12. a first mounting groove; 13. a first bushing; 14. a hard pad; 15. a wear sleeve; 16. a second mounting groove; 17. a second bushing; 18. a limit retainer ring; 19. a limiting groove; 20. a limiting boss; 21. sinking a groove; 22. connecting holes; 23. a connecting bolt; 24. a first ring groove; 25. a second ring groove; 26. a first lubricating oil groove; 27. a second lubrication groove; 28. an oil inlet hole; 29. an oil cup is filled with oil; 30. a brake assembly; 31. hub reduction unit assembly.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1, fig. 2, in an embodiment of the utility model, the engineering machine tool drive axle assembly includes axle housing 1, the front side of axle housing 1 middle part is connected with main reducer shell 2, the rear side of axle housing 1 middle part is connected with fixed axle 3, the rear of axle housing 1 is equipped with back swing frame 4, be equipped with first connecting sleeve 5 on the back swing frame 4, first connecting sleeve 5 suit is on fixed axle 3, the rear end of first connecting sleeve 5 is connected with back lid 6, the rear end of fixed axle 3 is equipped with outer loop edge 7, be equipped with the annular spread groove 8 that is used for holding outer loop edge 7 between first connecting sleeve 5 and the back lid 6, the place ahead of axle housing 1 is equipped with preceding swing frame 9, be equipped with second adapter sleeve 10 on the preceding swing frame 9, the front end of main reducer shell 2 is equipped with rotates connecting portion 11, second adapter sleeve 10 suit is on rotating connecting portion 11.

When the engineering machinery drive axle assembly is used: the rear swing frame 4 and the front swing frame 9 are fixed on the frame, the rear side of the axle housing 1 is rotatably connected with the rear swing frame 4, and the front side of the axle housing 1 is rotatably connected with the front swing frame 9 through the main speed reducer shell 2, so that the drive axle can swing relative to the frame; the rear side of the axle housing 1 is connected with the rear swing frame 4 into a whole by matching the outer ring edge 7 with the annular connecting groove 8, so that the axle housing 1 is limited to move along the front and rear directions of the frame; the second connecting sleeve 10 is sleeved on the rotating connecting portion 11, and the second connecting sleeve 10 has a certain axial moving range, so that the front swing frame 9 can be conveniently installed.

Referring to fig. 2 and 3, in order to prevent the first connection sleeve 5 and the fixing shaft 3 from being damaged too quickly due to mutual friction, a first installation groove 12 is formed in the first connection sleeve 5, and a first bushing 13 is installed in the first installation groove 12. In order to reduce the abrasion of the outer ring edge 7, the upper side and the lower side of the outer ring edge 7 are respectively provided with a hard gasket 14.

Referring to fig. 2 and 3, in an embodiment of the present invention, the fixing shaft 3 is a cylindrical structure, a limiting groove 19 is disposed on a front end surface of the fixing shaft 3, a limiting boss 20 is disposed on the axle housing 1, and the limiting boss 20 is inserted into the limiting groove 19; the limiting boss 20 is matched with the limiting groove 19, so that the mounting position of the fixing shaft 3 is accurate. A sunk groove 21 is arranged on the rear end face of the fixed shaft 3, a plurality of connecting holes 22 are annularly distributed at the bottom of the sunk groove 21, and connecting bolts 23 connected with the axle housing 1 penetrate through the connecting holes 22; the connecting bolt 23 is used for connecting between the fixed shaft 3 and the axle housing 1, and the sunk groove 21 is used for accommodating the head of the connecting bolt 23, so that the whole structure is more compact. Referring to fig. 3, the annular coupling groove 8 includes a first ring groove 24 provided on the first coupling sleeve 5 and a second ring groove 25 provided on the rear cover 6; referring to fig. 5 and 6, a plurality of first lubricating oil grooves 26 extending radially are annularly distributed at the groove bottom part of the second ring groove 25; referring to fig. 7, the first bush 13 is provided with a second lubrication groove 27; the rear swing frame 4 is provided with an oil inlet hole 28 and an oil filling cup 29 (not shown in the figure); the first ring groove 24 and the second ring groove 25 together form the annular connecting groove 8, the first lubricating oil groove 26 formed in the rear cover 6 and the second lubricating oil groove 27 formed in the first bushing 13 have the function of storing lubricating oil, lubrication is facilitated, lubricating oil can be injected into the oil inlet hole 28 through the oil injection cup 29, and the lubricating oil can enter the lubricating oil grooves for lubrication.

Referring to fig. 2 and 4, in an embodiment of the present invention, in order to protect the rotary connecting portion 11 and prevent the main speed reducer case 2 from being damaged, the rotary connecting portion 11 is installed with the wear sleeve 15, and the second connecting sleeve 10 is sleeved on the wear sleeve 15. In order to prevent the second connecting sleeve 10 and the main speed reducer casing 2 from being damaged too fast due to mutual friction, a second mounting groove 16 is arranged in the second connecting sleeve 10, the front side of the second mounting groove 16 penetrates through the front end face of the second connecting sleeve 10, a second bushing 17 is arranged in the second mounting groove 16, and a limiting retainer ring 18 used for limiting the second bushing 17 is arranged at the front end of the second connecting sleeve 10. Referring to fig. 7, the second bush 17 is provided with a second lubrication groove 27; referring to fig. 1, an oil inlet 28 and an oil filling cup 29 are arranged on the front swing frame 9; lubricating oil can be injected into the oil inlet hole 28 through the oil injection cup 29, and the lubricating oil can enter the second lubricating oil groove 27, so that lubrication is facilitated.

Referring to fig. 1, in a further improvement of the present invention, a brake assembly 30 and a wheel reduction assembly 31 are installed at both ends of the axle housing 1. The hub reduction assembly 31 is used for reducing speed and increasing torque, and the brake assembly 30 is used for braking wheels.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An engineering machinery drive axle assembly comprises an axle housing (1), wherein a main speed reducer shell (2) is connected to the front side of the middle part of the axle housing (1), and is characterized in that a fixed shaft (3) is connected to the rear side of the middle part of the axle housing (1), a rear swinging frame (4) is arranged behind the axle housing (1), a first connecting sleeve (5) is arranged on the rear swinging frame (4), the first connecting sleeve (5) is sleeved on the fixed shaft (3), a rear cover (6) is connected to the rear end of the first connecting sleeve (5), an outer ring edge (7) is arranged at the rear end of the fixed shaft (3), an annular connecting groove (8) used for accommodating the outer ring edge (7) is arranged between the first connecting sleeve (5) and the rear cover (6), a front swinging frame (9) is arranged in front of the axle housing (1), a second connecting sleeve (10) is arranged on the front swinging frame (9), a rotating connecting part (11) is arranged at the front end of the main speed reducer shell (2), the second connecting sleeve (10) is sleeved on the rotary connecting part (11).

2. The engineering machine drive axle assembly according to claim 1, wherein a first mounting groove (12) is formed in the first connecting sleeve (5), and a first bushing (13) is mounted in the first mounting groove (12).

3. The work machine drive axle assembly according to claim 1, wherein the outer rim (7) has a hard spacer (14) on each of upper and lower sides thereof.

4. The engineering mechanical drive axle assembly according to claim 1, wherein the rotation connecting part (11) is provided with a wear sleeve (15), and the second connecting sleeve (10) is sleeved on the wear sleeve (15).

5. The engineering mechanical drive axle assembly according to claim 4, wherein a second mounting groove (16) is formed in the second connecting sleeve (10), the front side of the second mounting groove (16) penetrates through the front end face of the second connecting sleeve (10), a second bushing (17) is mounted in the second mounting groove (16), and a limiting retainer ring (18) used for limiting the second bushing (17) is mounted at the front end of the second connecting sleeve (10).

6. The engineering machinery drive axle assembly according to claim 1, wherein the fixed shaft (3) is a cylindrical structure, a limiting groove (19) is formed in the front end face of the fixed shaft (3), a limiting boss (20) is formed on the axle housing (1), and the limiting boss (20) is inserted into the limiting groove (19).

7. The engineering machinery drive axle assembly according to claim 1, wherein the fixed shaft (3) is a cylindrical structure, a sunk groove (21) is formed in the rear end face of the fixed shaft (3), a plurality of connecting holes (22) are annularly distributed at the bottom of the sunk groove (21), and a connecting bolt (23) connected with the axle housing (1) penetrates through the connecting holes (22).

8. The engineering machinery drive axle assembly according to claim 2, wherein the annular connecting groove (8) comprises a first annular groove (24) formed in the first connecting sleeve (5) and a second annular groove (25) formed in the rear cover (6), a plurality of first lubricating oil grooves (26) extending radially are annularly distributed at the bottom of the second annular groove (25), a second lubricating oil groove (27) is formed in the first bush (13), and an oil inlet hole (28) and an oil filling cup (29) are formed in the rear swing frame (4).

9. The engineering machine drive axle assembly as claimed in claim 5, wherein the second bush (17) is provided with a second lubrication groove (27), and the front swing frame (9) is provided with an oil inlet hole (28) and is provided with an oil filling cup (29).

10. The engineering machinery drive axle assembly according to claim 1, wherein both ends of the axle housing (1) are provided with a brake assembly (30) and a hub reduction gear assembly (31).